Using CPD, the PTRs of deep vein in lower limbs, femoral common vein and popliteal vein were remarkably larger than those in control group(all P< 0.001) .

观察组下肢深静脉彩色脉冲多普勒（CPD）返流持续时间（PTR）、股总静脉PTR、朋静脉PTR明显大于对照组（均P<0.001）。

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Results :The occlusion rate of superficial vein detained needle was 22.1% in group of normal saline, but 7.4% in group of heparin sodium(P<0.05).

结果：生理盐水封管组浅静脉留置针阻管发生率为22.1%，而肝素钠封管组为7.4%，后者显著少于前者（P<0.05）。

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The abnormal expression of E-cadherin significantly was related with portal vein embolus or not(P< 0.01).

钙粘素异常表达在门静脉有无癌栓中呈明显相关（P<0.01）。

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